Fractography as a tool to assess the occurrence of fatigue fractures in complex microstructure structural components

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Published September 30, 2012
DOI: https://doi.org/10.3221/IGF-ESIS.22.02

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D. Firrao Politecnico di Torino - Dipartimento di Scienza Applicata e Tecnologia (DISAT), Corso Duca degli Abruzzi 24, 10129 Torino P. Matteis

Abstract

Fractographic assessment of fatigue fractures may be difficult if they occur in metallic components characterized by low ductility complex microstructures. In these cases reconciliation of known fatigue rupture mechanisms with fractographic appearance of fatigue fractured surfaces is challenging. Special techniques coupled with theory development may be necessary. Pearlitic steels or steels with predominant pearliticmicrostructures are among the ones that are visited and their fatigue fractures interpreted. Analogously, fatigued Al foundry alloys, with hypoeutectic Al-Si compositions, are also illustrated.

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Issue
Vol 6 No 22 (2012): October 2012
Section
Miscellanea

How to Cite

Fractography as a tool to assess the occurrence of fatigue fractures in complex microstructure structural components. (2012). Fracture and Structural Integrity, 6(22), pages 12-19. https://doi.org/10.3221/IGF-ESIS.22.02

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How to Cite

Fractography as a tool to assess the occurrence of fatigue fractures in complex microstructure structural components. (2012). Fracture and Structural Integrity, 6(22), pages 12-19. https://doi.org/10.3221/IGF-ESIS.22.02

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